| 其他書名 | A Discussion of the Methods Used in Sampling and Valuing Ore Deposits, with Especial Reference to the Work of Valuation by the Independent Engineer |
| 出版 | Mining and Scientific Press, 1914 |
| URL | http://books.google.com.hk/books?id=Dg5ZAAAAYAAJ&hl=&source=gbs_api |